Bicycle frame



0, 1931- E. s. VAN VALKENBURG 1,791,935

BICYCLE FRAME Filed Feb. 8. 1929 IN VEN TOR.

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Fatented Feb. 10, 1931 UNITED STATES PATENT OFFICE EDWARD S. VAN VALKENBURG, LITTLE FALLS, NEVJ YORK, ASSIGNOR TO HOMER P,

SNYDER MANUFACTURING COMPANY, INC., OF LITTLE FALLS, NEW YORK, A GOR- roRA'i'rIoN on NEW YORK BICYCLE FRAME Application filed. February 8, 1929. Serial No. 338,513.

My invention relates to a bicycle frame,

and I declare the following to be a full, clear,

concise and exact description thereof sufficient to enable anyone'skilled' in the art to which it appertains to make and use the same, reference being had to the accompany stamped to pattern, whereby to efiect great strength with lightness of material.

, The objectwill be understood by referring I to the drawings in which: I V

Fig. 1 is aplan view showing a pattern of a handle bar stem employed.

Fig. Q'is a perspective view'showing the at an angle to said post and welding the abutting edges.

In testimony whereof I have affixed my signature.

EDWARD S. VAN VALKENBURG.

pattern of Fig. 1 in the second stageof completion.

Fig. 3 is a perspective View showing, the. pattern of Fig. 1 in thethird stage of completion.

Fig. 4 is a perspective view showing the handle bar stem made from pattern shown in Fig.1 in final stage of completion.

Referring more particularly to the-drawings, the handle bar post 1 is made by stamping the pattern thereof out of sheet metal 2 as shown in Fig. 1. The successive stagesfare shown in Figs. 2, 3, 4;. The ends are brought together finally and welded, thereby forming a. single piece post 1 that is hollow for light ness and, yet, possessessufficient strength to serve its purpose. Part 3 forms a hollow tube nearly at right angles to hollow tube .4 and has a clamping part 5 adapted to hold adjustable handle bars therein.

Having thus described my inventlon what I claim as new and desire to secure by Letters Patent is as follows: V

1. In a bicycle frame, a process of forming I a handlebar post by bending sheet metal into a hollow-tube, forming a clamping member at an angle to said post and securing the abutting edges. 7

2. In a bicycle frame, a process of forming a handlebar post by bending sheet metal into a hollow tube, forminga clamping member 

